What is the molarity of a solution when 3.58 moles of NaCl are dissolved in 2.12 L of solution?

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

All of the following are part of the biosphere except

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)